Multiple Choice
A cylinder contains 30.0 L of oxygen gas at a pressure of 1.9 atm and a temperature of 307 K. How many moles of gas are in the cylinder?
When 0.670 g argon is added to a 500 cm3 container with a sample of oxygen gas, the total pressure of the gases is found to be 1.52 atm at a temperature of 340 K. What is the mass of the oxygen gas in the bulb?
The volume of a sample of gas (2.49 g) was 752 mL at 1.98 atm and 62 °C. The gas is ________.